/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.yarn.am.monitor;

import java.util.List;

import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerStatus;

/**
 * Interface for container monitoring components wanting
 * to be aware of {@link Container}s and {@link ContainerStatus}s.
 *
 * @author Janne Valkealahti
 *
 */
public interface ContainerAware {

	/**
	 * Called when we potentially have new information
	 * about a {@link Container}s.
	 *
	 * @param containers the containers
	 */
	void onContainer(List<Container> containers);

	/**
	 * Called when we potentially have new information
	 * about a {@link ContainerStatus}s.
	 *
	 * @param containerStatuses the container statuses
	 */
	void onContainerStatus(List<ContainerStatus> containerStatuses);

}
